package android.concisapp;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.concisapp.fragments.AboutFragment;
import android.concisapp.fragments.CalendarFragment;
import android.concisapp.fragments.NewsFragment;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;

import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

public class MainActivity extends FragmentActivity implements
		ActionBar.TabListener {

	/**
	 * The {@link android.support.v4.view.PagerAdapter} that will provide
	 * fragments for each of the sections. We use a
	 * {@link android.support.v4.app.FragmentPagerAdapter} derivative, which
	 * will keep every loaded fragment in memory. If this becomes too memory
	 * intensive, it may be best to switch to a
	 * {@link android.support.v4.app.FragmentStatePagerAdapter}.
	 */
	SectionsPagerAdapter mSectionsPagerAdapter;

	/**
	 * The {@link ViewPager} that will host the section contents.
	 */
	ViewPager mViewPager;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(getApplicationContext()).defaultDisplayImageOptions(DisplayImageOptions.createSimple()).build();
		ImageLoader.getInstance().init(config);
		
		DisplayImageOptions defaultOptions = new DisplayImageOptions.Builder().bitmapConfig(Bitmap.Config.RGB_565).showImageOnFail(R.drawable.loading).showImageForEmptyUri(R.drawable.ic_launcher).showImageOnLoading(R.drawable.loading).build();
		
		
		setContentView(R.layout.activity_main);

		// Set up the action bar.
		final ActionBar actionBar = getActionBar();
		actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

		// Create the adapter that will return a fragment for each of the three
		// primary sections of the app.
		List<Fragment> fragments = getFragments();
		mSectionsPagerAdapter = new SectionsPagerAdapter(
				getSupportFragmentManager(), fragments);

		// Set up the ViewPager with the sections adapter.
		mViewPager = (ViewPager) findViewById(R.id.pager);
		mViewPager.setAdapter(mSectionsPagerAdapter);

		// When swiping between different sections, select the corresponding
		// tab. We can also use ActionBar.Tab#select() to do this if we have
		// a reference to the Tab.
		mViewPager
				.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
					@Override
					public void onPageSelected(int position) {
						actionBar.setSelectedNavigationItem(position);
					}
				});

		// For each of the sections in the app, add a tab to the action bar.
		for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
			// Create a tab with text corresponding to the page title defined by
			// the adapter. Also specify this Activity object, which implements
			// the TabListener interface, as the callback (listener) for when
			// this tab is selected.
			actionBar.addTab(actionBar.newTab()
					.setText(mSectionsPagerAdapter.getPageTitle(i))
					.setTabListener(this));
		}
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public void onTabSelected(ActionBar.Tab tab,
			FragmentTransaction fragmentTransaction) {
		// When the given tab is selected, switch to the corresponding page in
		// the ViewPager.
		mViewPager.setCurrentItem(tab.getPosition());
	}

	@Override
	public void onTabUnselected(ActionBar.Tab tab,
			FragmentTransaction fragmentTransaction) {
	}

	@Override
	public void onTabReselected(ActionBar.Tab tab,
			FragmentTransaction fragmentTransaction) {
	}

	private List<Fragment> getFragments() {
		List<Fragment> fList = new ArrayList<Fragment>();

		fList.add(NewsFragment.newInstance("NOTICIAS"));
		fList.add(CalendarFragment.newInstance("CALENDARIO"));
		fList.add(AboutFragment.newInstance("ABOUT"));

		return fList;
	}

	/**
	 * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
	 * one of the sections/tabs/pages.
	 */
	public class SectionsPagerAdapter extends FragmentPagerAdapter {

		private List<Fragment> fragments;

		public SectionsPagerAdapter(FragmentManager fm, List<Fragment> fragments) {
			super(fm);
			this.fragments = fragments;
		}

		@Override
		public Fragment getItem(int position) {
			// getItem is called to instantiate the fragment for the given page.
			// Return a DummySectionFragment (defined as a static inner class
			// below) with the page number as its lone argument.
			return this.fragments.get(position);
		}

		@Override
		public int getCount() {
			// Show 3 total pages.
			return this.fragments.size();
		}

		@Override
		public CharSequence getPageTitle(int position) {
			Locale l = Locale.getDefault();
			switch (position) {
			case 0:
				return getString(R.string.title_news).toUpperCase(l);
			case 1:
				return getString(R.string.title_calendar).toUpperCase(l);
			case 2:
				return getString(R.string.title_about).toUpperCase(l);
			}
			return null;
		}

	}

	/**
	 * A dummy fragment representing a section of the app, but that simply
	 * displays dummy text.
	 */
	public static class DummySectionFragment extends Fragment {
		/**
		 * The fragment argument representing the section number for this
		 * fragment.
		 */
		public static final String ARG_SECTION_NUMBER = "section_number";

		private int position;

		public DummySectionFragment() {
		}

		public int getPosition() {
			return position;
		}

		public void setPosition(int position) {
			this.position = position;
		}

		@Override
		public View onCreateView(LayoutInflater inflater, ViewGroup container,
				Bundle savedInstanceState) {
			// View rootView = inflater.inflate(R.layout.fragment_main_dummy,
			// container, false);
			// TextView dummyTextView = (TextView)
			// rootView.findViewById(R.id.section_label);
			// dummyTextView.setText(Integer.toString(getArguments().getInt(ARG_SECTION_NUMBER)));
			View rootView = null;
			switch (position) {
			case 0:
				rootView = inflater
						.inflate(R.layout.noticias, container, false);
				break;
			case 1:
				rootView = inflater.inflate(R.layout.calendario, container,
						false);
				break;
			case 2:
				rootView = inflater.inflate(R.layout.sobre, container, false);
				break;
			default:
				rootView = null;
				break;
			}

			return rootView;
		}
	}

}
